DCO Error: Documentum Folders doesn't show in Outlook Tree Viewer

Documentum Folders doesn't show in Outlook Tree Viewer after installing DCO Client.
When opening Outlook, you will get an error that says,

The file C:\Documents and Settings\\Application Data\Documentum\DCO\Documentum.pst could not be found.

If this occurs, there is a problem with the PST file that is create. To create this file again

1.Close Documentum Folders in Outlook
2.Close Outlook.
3. Verify that Outlook and the DCOAddin process is closed in the Task Manager.
4. Restart Outlook.

When Outlook is restarted the DCOAddin will recreate the PST file.

If there error continues and the PST file is not created. Then something is preventing the DCOAddin from creating the PST file. Make sure that the directory is not mapped and that the user has rights to add to that directory.